I use YNAB (
https://youneedabudget.com/), which requires inputting every one of your transactions by hand or importing them from your bank. The downside of the import is it takes a few days for the transaction to show up and you need to give YNAB your bank username/password, which I'm not comfortable with.
I wrote this https://github.com/buzzlawless/ynab-live-import to import credit card transactions instantly with no need of giving up my bank credentials.
The whole stack runs on Amazon Web Services. Simple Email Service receives a notification email from the bank that I've made a purchase, saves it to S3, and triggers a particular lambda function tailored to whichever bank the notification came from. The lambda function retrieves the email from S3, parses it for transaction data (account, payee, amount, date), and writes that data to a DynamoDB table. The table has a stream enabled, which triggers another lambda function when the table is updated. The function reads the transaction data from the stream and posts the transaction to YNAB using their API.
I've mentioned this on HN once or twice before and got some positive interest with people even submitting pull requests, which is awesome :) Going to find the time soon to review those and maybe add more features
I wrote this https://github.com/buzzlawless/ynab-live-import to import credit card transactions instantly with no need of giving up my bank credentials.
The whole stack runs on Amazon Web Services. Simple Email Service receives a notification email from the bank that I've made a purchase, saves it to S3, and triggers a particular lambda function tailored to whichever bank the notification came from. The lambda function retrieves the email from S3, parses it for transaction data (account, payee, amount, date), and writes that data to a DynamoDB table. The table has a stream enabled, which triggers another lambda function when the table is updated. The function reads the transaction data from the stream and posts the transaction to YNAB using their API.
I've mentioned this on HN once or twice before and got some positive interest with people even submitting pull requests, which is awesome :) Going to find the time soon to review those and maybe add more features